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authorChen Gong <gong.chen@linux.intel.com>2011-10-12 09:17:24 -0700
committerTony Luck <tony.luck@intel.com>2011-10-12 09:17:24 -0700
commitb238b8fa93353ab50c9a2b1e2fa47a0ab01c37cd (patch)
treea46a6ce7567d9826ae48c2f3dc5aa0167de1f26c /drivers/firmware
parentabd4d5587be911f63592537284dad78766d97d62 (diff)
downloadlinux-b238b8fa93353ab50c9a2b1e2fa47a0ab01c37cd.tar.gz
pstore: make pstore write function return normal success/fail value
Currently pstore write interface employs record id as return value, but it is not enough because it can't tell caller if the write operation is successful. Pass the record id back via an argument pointer and return zero for success, non-zero for failure. Signed-off-by: Chen Gong <gong.chen@linux.intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'drivers/firmware')
-rw-r--r--drivers/firmware/efivars.c17
1 files changed, 9 insertions, 8 deletions
diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c
index be8bcb035e2a..8370f72d87ff 100644
--- a/drivers/firmware/efivars.c
+++ b/drivers/firmware/efivars.c
@@ -490,8 +490,8 @@ static ssize_t efi_pstore_read(u64 *id, enum pstore_type_id *type,
return 0;
}
-static u64 efi_pstore_write(enum pstore_type_id type, unsigned int part,
- size_t size, struct pstore_info *psi)
+static int efi_pstore_write(enum pstore_type_id type, u64 *id,
+ unsigned int part, size_t size, struct pstore_info *psi)
{
char name[DUMP_NAME_LEN];
char stub_name[DUMP_NAME_LEN];
@@ -499,7 +499,7 @@ static u64 efi_pstore_write(enum pstore_type_id type, unsigned int part,
efi_guid_t vendor = LINUX_EFI_CRASH_GUID;
struct efivars *efivars = psi->data;
struct efivar_entry *entry, *found = NULL;
- int i;
+ int i, ret = 0;
sprintf(stub_name, "dump-type%u-%u-", type, part);
sprintf(name, "%s%lu", stub_name, get_seconds());
@@ -548,18 +548,19 @@ static u64 efi_pstore_write(enum pstore_type_id type, unsigned int part,
efivar_unregister(found);
if (size)
- efivar_create_sysfs_entry(efivars,
+ ret = efivar_create_sysfs_entry(efivars,
utf16_strsize(efi_name,
DUMP_NAME_LEN * 2),
efi_name, &vendor);
- return part;
+ *id = part;
+ return ret;
};
static int efi_pstore_erase(enum pstore_type_id type, u64 id,
struct pstore_info *psi)
{
- efi_pstore_write(type, id, 0, psi);
+ efi_pstore_write(type, &id, (unsigned int)id, 0, psi);
return 0;
}
@@ -580,8 +581,8 @@ static ssize_t efi_pstore_read(u64 *id, enum pstore_type_id *type,
return -1;
}
-static u64 efi_pstore_write(enum pstore_type_id type, unsigned int part,
- size_t size, struct pstore_info *psi)
+static int efi_pstore_write(enum pstore_type_id type, u64 *id,
+ unsigned int part, size_t size, struct pstore_info *psi)
{
return 0;
}